メタデータ
| 項目 |
値 |
| Designation |
P/2023 B3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-09-02T19:46:49.169280Z |
| Orbit solution date (soln_date, UTC) |
2023-03-20T19:43:10Z |
| Obs used |
82 |
| NEO |
- |
| M1 |
14.700 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-01-23T10:13:08.774400Z |
| Discovery magnitude (MPC) |
21.14 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2022-12-21.0000000 |
| e |
0.12329891 |
| q (au) |
3.982887 |
| a (au) |
4.543039 |
| i (deg) |
9.163475 |
| Ω (om, deg) |
154.004785 |
| ω (w, deg) |
239.769487 |
| M (ma, deg) |
85.415628 |
等級
散乱 + 全体線形
$$
M_a = (14.589 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.589 |
| n |
2.000 |
| gf |
0.861 |
| gb |
-0.934 |
| k |
1.000 |
| δ90 |
1.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
16:18:14.04 |
-11:01:44.4 |
HIP 79928 |
16.99 |
| 2026-03-26 12:00 |
16:18:12.61 |
-11:00:39.5 |
HIP 79928 |
16.26 |
| 2026-03-27 00:00 |
16:18:10.99 |
-10:59:34.2 |
HIP 79928 |
15.61 |
| 2026-03-27 12:00 |
16:18:09.16 |
-10:58:28.5 |
HIP 79928 |
15.05 |
| 2026-03-28 00:00 |
16:18:07.14 |
-10:57:22.4 |
HIP 79928 |
14.59 |
| 2026-03-28 12:00 |
16:18:04.91 |
-10:56:15.9 |
HIP 79928 |
14.25 |
| 2026-03-29 00:00 |
16:18:02.48 |
-10:55:09.1 |
HIP 79928 |
14.06 |
| 2026-03-29 12:00 |
16:17:59.85 |
-10:54:01.9 |
HIP 79928 |
14.01 |
| 2026-03-30 00:00 |
16:17:57.02 |
-10:52:54.4 |
HIP 79928 |
14.13 |
| 2026-03-30 12:00 |
16:17:53.99 |
-10:51:46.4 |
HIP 79928 |
14.41 |
| 2026-03-31 00:00 |
16:17:50.76 |
-10:50:38.2 |
HIP 79928 |
14.86 |
| 2026-03-31 12:00 |
16:17:47.33 |
-10:49:29.6 |
HIP 79928 |
15.46 |
| 2026-04-01 00:00 |
16:17:43.70 |
-10:48:20.7 |
HIP 79928 |
16.22 |
| 2026-04-01 12:00 |
16:17:39.87 |
-10:47:11.4 |
HIP 79928 |
17.12 |
| 2026-04-02 00:00 |
16:17:35.85 |
-10:46:01.9 |
HIP 79928 |
18.14 |
| 2026-04-02 12:00 |
16:17:31.62 |
-10:44:52.0 |
HIP 79928 |
19.28 |
| 2026-04-03 00:00 |
16:17:27.20 |
-10:43:41.8 |
HIP 79928 |
20.53 |
| 2026-04-03 12:00 |
16:17:22.58 |
-10:42:31.3 |
HIP 79928 |
21.87 |
| 2026-04-04 00:00 |
16:17:17.77 |
-10:41:20.5 |
HIP 79928 |
23.29 |
| 2026-04-04 12:00 |
16:17:12.76 |
-10:40:09.5 |
HIP 79928 |
24.79 |
| 2026-04-05 00:00 |
16:17:07.56 |
-10:38:58.2 |
HIP 79928 |
26.37 |
| 2026-04-05 12:00 |
16:17:02.16 |
-10:37:46.6 |
HIP 79749 |
27.16 |
| 2026-04-06 00:00 |
16:16:56.56 |
-10:36:34.7 |
HIP 79749 |
25.70 |
| 2026-04-06 12:00 |
16:16:50.78 |
-10:35:22.6 |
HIP 79749 |
24.27 |
| 2026-04-07 00:00 |
16:16:44.79 |
-10:34:10.3 |
HIP 79749 |
22.90 |
| 2026-04-07 12:00 |
16:16:38.62 |
-10:32:57.7 |
HIP 79749 |
21.60 |
| 2026-04-08 00:00 |
16:16:32.26 |
-10:31:44.8 |
HIP 79749 |
20.40 |
| 2026-04-08 12:00 |
16:16:25.70 |
-10:30:31.8 |
HIP 79749 |
19.33 |
| 2026-04-09 00:00 |
16:16:18.95 |
-10:29:18.6 |
HIP 79749 |
18.43 |
| 2026-04-09 12:00 |
16:16:12.02 |
-10:28:05.1 |
HIP 79749 |
17.74 |
| 2026-04-10 00:00 |
16:16:04.90 |
-10:26:51.5 |
HIP 79749 |
17.29 |
| 2026-04-10 12:00 |
16:15:57.58 |
-10:25:37.6 |
HIP 79749 |
17.13 |
| 2026-04-11 00:00 |
16:15:50.09 |
-10:24:23.6 |
HIP 79749 |
17.27 |
| 2026-04-11 12:00 |
16:15:42.40 |
-10:23:09.4 |
HIP 79749 |
17.72 |
| 2026-04-12 00:00 |
16:15:34.53 |
-10:21:55.1 |
HIP 79749 |
18.48 |
| 2026-04-12 12:00 |
16:15:26.48 |
-10:20:40.6 |
HIP 79588 |
17.71 |
| 2026-04-13 00:00 |
16:15:18.24 |
-10:19:26.0 |
HIP 79588 |
16.12 |
| 2026-04-13 12:00 |
16:15:09.83 |
-10:18:11.2 |
HIP 79588 |
14.71 |
| 2026-04-14 00:00 |
16:15:01.23 |
-10:16:56.3 |
HIP 79588 |
13.55 |
| 2026-04-14 12:00 |
16:14:52.45 |
-10:15:41.3 |
HIP 79588 |
12.74 |
| 2026-04-15 00:00 |
16:14:43.50 |
-10:14:26.3 |
HIP 79588 |
12.36 |
| 2026-04-15 12:00 |
16:14:34.36 |
-10:13:11.1 |
HIP 79588 |
12.48 |
| 2026-04-16 00:00 |
16:14:25.06 |
-10:11:55.8 |
HIP 79588 |
13.11 |